Rates of dna and rna synthesis in various tissues during a larval moult cycle of samia cynthia ricini (lepidoptera)

ABSTRACT THIS report describes the rates of synthesis of DNA and RNA in various tissues during larval moulting of a silk-moth and examines the control of these processes. The following

questions were posed for specific tissues: When during a moult cycle is DNA synthesized ? Is DNA synthesis synchronous in some tissues ? In all tissues ? What proportion of the cells in each

tissue engage in DNA synthesis during a moult cycle ? Is DNA synthesis in some tissues under the control of the prothoracic gland hormone, ecdysone ? How does the rate of RNA synthesis in

specific tissues change during a moult cycle ? Is RNA synthesis under hormonal control ? Previous investigations of the larval–pupal transformation and of diapausing pupae led us to conclude

that “almost all tissues of the pupa require ecdysone for DNA synthesis” whereas “RNA synthesis continues in many tissues when little or no ecdysone is present”1,2. The present experiments

extend these observations and confirm the hypothesis that stimulation of DNA synthesis is a primary effect of ecdysone3. Access through your institution Buy or subscribe This is a preview of

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RED FLOUR BEETLE _TRIBOLIUM CASTANEUM_ Article Open access 22 September 2021 REFERENCES * Schneiderman, H. A., and Gilbert, L. I., _Science_, 143, 325 (1964). Article  ADS  CAS  Google

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AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Developmental Biology Center and Department of Biology, Western Reserve University, Cleveland, Ohio A. KRISHNAKUMARAN, H. OBERLANDER & H. A.

SCHNEIDERMAN Authors * A. KRISHNAKUMARAN View author publications You can also search for this author inPubMed Google Scholar * H. OBERLANDER View author publications You can also search

for this author inPubMed Google Scholar * H. A. SCHNEIDERMAN View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and

permissions ABOUT THIS ARTICLE CITE THIS ARTICLE KRISHNAKUMARAN, A., OBERLANDER, H. & SCHNEIDERMAN, H. Rates of DNA and RNA Synthesis in Various Tissues during a Larval Moult Cycle of

_Samia cynthia ricini_ (Lepidoptera). _Nature_ 205, 1131–1133 (1965). https://doi.org/10.1038/2051131a0 Download citation * Issue Date: 13 March 1965 * DOI: https://doi.org/10.1038/2051131a0

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